Podcast
Questions and Answers
What is a niche?
What is a niche?
- The geographic location where an organism lives
- The environmental conditions an organism needs for survival (correct)
- The biological factors related to an organism's habitat
- The times of activity and social hierarchy of an organism
When does competition occur in a niche?
When does competition occur in a niche?
- When two organisms have the same requirements for food, water, and nesting sites (correct)
- When two organisms have the same temperature and humidity requirements
- When two organisms share the same behavior and social hierarchy
- When two organisms have the same predators and prey
What is a limiting resource or limiting factor?
What is a limiting resource or limiting factor?
- A resource that is abundant in the environment
- A factor that has no effect on population size
- A factor that enhances the survival of a population
- A resource that limits the size of a population (correct)
What is interspecific competition?
What is interspecific competition?
Which of the following best describes intraspecific competition?
Which of the following best describes intraspecific competition?
What is interference competition?
What is interference competition?
What happens during interference competition?
What happens during interference competition?
Which scenario best exemplifies interference competition?
Which scenario best exemplifies interference competition?
What is the role of a niche in competition among organisms?
What is the role of a niche in competition among organisms?
When does interspecific competition occur?
When does interspecific competition occur?
Which of the following is NOT considered a part of an organism's niche?
Which of the following is NOT considered a part of an organism's niche?
In which type of competition do individuals of two separate species compete for the same resource in the same area?
In which type of competition do individuals of two separate species compete for the same resource in the same area?
What is the term for a resource that limits the size of a population?
What is the term for a resource that limits the size of a population?
In which type of competition do members of the same species compete for the same resource in the same area?
In which type of competition do members of the same species compete for the same resource in the same area?
What happens during interference competition?
What happens during interference competition?
Which of the following is NOT a part of an organism's niche?
Which of the following is NOT a part of an organism's niche?
Study Notes
- A niche is the specific environmental conditions and resources an organism requires for survival.
- Niches include temperature, soil, humidity, sunlight, food sources, water, nesting sites, hibernation space, and relationships with other organisms.
- Overlapping niches can lead to competition, which occurs when two organisms have the same requirements for resources.
- Limiting resources or limiting factors restrict population size and can lead to competition.
- Interspecific competition: two different species compete for the same resource in the same area.
- An example of intraspecific competition: all members of the same species competing for the same resource in the same area.
- Interference competition: one species actively prevents another from accessing a resource, even if the resource is abundant.
- Size and age differences can contribute to interference competition, with larger or older organisms excluding smaller or younger ones.
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Description
Test your knowledge about the concept of niche and competition in ecology. Understand how an organism's habitat, environmental conditions, biological factors, and behavior contribute to its niche, and how competition arises when two niches overlap.
